reg13 esc en
TRANSCRIPT
-
7/30/2019 Reg13 Esc En
1/18
ELECTRONIC VEHICLE STABILITY CONTROL
This document contains the text modifications to United Nations Economic Commission for Europe
(UNECE) Regulation 13 to introduce new requirements for electronic stability control for heavy
vehicles. It is based on UNECE documents ECE/TRANS/WP.29/2007/100 and WP29-143-07 rev 1.
The following is for information only and should not be considered as a legal document. For the
definitive documents, please see the UNECE website athttp://www.unece.org/trans/main/welcwp29.htm
http://www.unece.org/trans/main/welcwp29.htmhttp://www.unece.org/trans/main/welcwp29.htmhttp://www.unece.org/trans/main/welcwp29.htmhttp://www.unece.org/trans/main/welcwp29.htmhttp://www.unece.org/trans/main/welcwp29.htm -
7/30/2019 Reg13 Esc En
2/18
Modifications to UNECE Regulation 13.*
Add new paragraphs 2.32. to 2.32.2.2., to read:
"2.32. "Vehicle Stability Function" means an electronic control function for a vehicle whichimproves the dynamic stability of the vehicle.
2.32.1. A vehicle stability function includes one or both of the following:
(a) directional control
(b) roll-over control
2.32.2. Control functions within a vehicle stability function:
2.32.2.1. "Directional control" means a function within a vehicle stability function that assists the
driver, in the event of under steer and over steer conditions, within the physical limits of
the vehicle in maintaining the direction intended by the driver in the case of a power-
driven vehicle, and assists in maintaining the direction of the trailer with that of the
towing vehicle in the case of a trailer.
2.32.2.2. "Roll-over control" means a function within a vehicle stability function that reacts to an
impending roll-over in order to stabilise the power-driven vehicle or towing vehicle and
trailer combination or the trailer during dynamic manoeuvres within the physical limits
of the vehicle."
Paragraph 5.2.1.32., amend to read (including the insertion of a reference to a new footnote 1/ and a
new footnote 1/):
"5.2.1.32. Subject to the provisions of paragraph 12.4. to this Regulation, all vehicles of
categories M2, M3, N2 and N3 1/ having no more than 3 axles, shall be equipped with
a vehicle stability function. This shall include roll-over control and directional
control and meet the technical requirements of Annex 21 to this Regulation."
Paragraph 5.2.2.23., amend to read (including the insertion of a reference to a new footnote 2/ and a
new footnote 2/):
"5.2.2.23. Subject to the provisions of paragraph 12.4. to this Regulation, all vehicles of
* (for a consolidated version of the current text of Regulation 13 please see:
http://www.unece.org/trans/doc/2007/wp29/ECE-TRANS-WP29-2007-02e.pdf )
1/ Off-road vehicles, special purpose vehicles (e.g. mobile plant using non standard vehicle
chassis e.g. cranes - , hydro-static driven vehicles in which the hydraulic drive system is also used
for braking and auxiliary functions), Class I and Class A buses of categories M2 and M3, articulated
buses and coaches, N2 tractors for semi-trailer with a gross vehicle mass (GVM) between 3.5 and7.5 tonnes, shall be excluded from this requirement.
http://www.unece.org/trans/doc/2007/wp29/ECE-TRANS-WP29-2007-02e.pdfhttp://www.unece.org/trans/doc/2007/wp29/ECE-TRANS-WP29-2007-02e.pdfhttp://www.unece.org/trans/doc/2007/wp29/ECE-TRANS-WP29-2007-02e.pdf -
7/30/2019 Reg13 Esc En
3/18
categories O3 and O4 2/ having no more than 3 axles and equipped with air
suspension, shall be equippedwith a vehicle stability function. This shall include at
least roll-over control and meet the technical requirements of Annex 21 to this
Regulation."
Paragraph 12.1.7., amend to read (including the footnote */):
"12.1.7. As from the official date of entry into force of the 11 series of amendments, no
Contracting Party applying this Regulation shall refuse to grant type-approval under
this Regulation as amended by the 11 series of amendments. */"
Paragraphs 12.4. and 12.4.1., amend to read:
"12.4. Mandatory provisions for vehicles equipped with a vehicle stability function
12.4.1. Requirements for the equipment of vehicles with vehicle stability functions as
specified in paragraphs 5.2.1.32. and 5.2.2.23. of this Regulation, as amended by
the 11 series of amendments, shall be applied as follows:
2/ Trailers for exceptional load transport and trailers with areas for standing passengers shall
be excluded from this requirement.*
/ This paragraph shall not prevent Denmark from continuing to mandate a vehicle stabilityfunction meeting the requirements of this Regulation.
-
7/30/2019 Reg13 Esc En
4/18
Application date (as from the date
after entry into force of
the 11 series of amendments)
Vehicle category
Contracting Partiesapplying this
Regulation shall grant
approvals only if the
vehicle type to be
approved meets the
requirements of this
Regulation as amended
by the 11 series of
amendments
Contracting Partiesapplying this Regulation
may refuse first national
or regional registration of
a vehicle which does not
meet the requirements of
the 11 series of
amendments to this
Regulation.
M2 60 months 84 months
M3 (Class III)
M3
-
7/30/2019 Reg13 Esc En
5/18
Annex 2, add new items 14.14. and 14.14.1., to read:
"14.14. The vehicle is equipped with a vehicle stability function: Yes/No 2/
If yes:
The vehicle stability function has been tested according to
and fulfils the requirements of Annex 21: Yes/No 2/Vehicle stability function is optional equipment: Yes/No 2/
Vehicle stability function includes directional control: Yes/No 2/
Vehicle stability function includes roll-over control: Yes/No 2/
14.14.1. Where an Annex 19 test report has been utilised, the test
report number shall be stated: ...................................................... "
Annex 10, paragraph 1.3.1., footnote **/, amend to read:
"**/
In the case of multiple axles, where the axle spread between one axle and its adjacent axle is
greater than 2.0 m, each individual axle shall be considered as an independent axle group."
Annex 19,
Add a new paragraph 1.1.5., to read:
"1.1.5. Vehicle stability function (refer to paragraph 6.)."
Add new paragraphs 6. to 6.6.1., to read:
"6. Vehicle stability function
6.1. General
6.1.1. This section defines a test procedure to determine the dynamic characteristics of a
vehicle equipped with a vehicle stability function consisting of at least one of the
following functions:
(a) directional control
(b) roll-over control
6.2. Information document
6.2.1. The system/vehicle manufacturer shall supply to the Technical Service an Information
Document of the control function(s) for which performance verification is required.
This document shall contain at least the information defined in Appendix 7 to this
Annex.
-
7/30/2019 Reg13 Esc En
6/18
6.3. Definition of test vehicle(s)
6.3.1. Based on the stability control function(s) and their application(s) defined in the
manufacturer's information document the Technical Service shall carry out a
performance verification. This may include one or more dynamic manoeuvres as
defined in paragraph 2.2.3. of Annex 21 to this Regulation on a trailer(s) having up to
three axles which is representative of the application(s) defined in paragraph 2.1. of themanufacturers information document.
6.3.1.1. When selecting the trailer(s) for evaluation, consideration shall also be given to the
following:
(a) Suspension type: for each suspension group, e.g. balanced pneumatic, a trailer of
that specification shall be evaluated.
(b) Wheel base: wheel base shall not be a limiting factor.
(c) Brake type: approval shall be limited to trailers with S-cam or disc brakes but
should other types become available, then comparative testing may be required.
(d) Braking system: the braking system of the trailer(s) to be evaluated shall comply
with all of the relevant requirements of this Regulation.
6.4. Test schedule
6.4.1. To evaluate the vehicle stability control function the tests used shall be agreed between
the system/vehicle manufacturer and the Technical Service and shall include conditions,
appropriate to the function being evaluated, that would without the intervention of the
stability control function result in loss of directional control or roll-over. The dynamic
manoeuvres, test conditions and results shall be included in the test report.
6.5. Towing vehicle
6.5.1. The towing vehicle used for evaluating the performance of the vehicle (trailer) stability
function shall have the necessary pneumatic and electrical connections and if the towing
vehicle is equipped with a vehicle stability function as defined in paragraph 2.32. of this
Regulation that function shall be disabled.
6.6. Test report
6.6.1. A test report shall be produced, the content of which shall be at least that defined in
Appendix 8 to this Annex."
Add a new Appendix 7 to Annex 19, to read:
"Annex 19 - Appendix 7
VEHICLE STABILITY FUNCTION INFORMATION DOCUMENT
1. General
1.1. Name of manufacturer
1.2. System name
1.3. System variations
-
7/30/2019 Reg13 Esc En
7/18
1.4. Control function (directional / roll-over / both) including an explanation of the basic
function and/or philosophy of the control
1.5. System configurations (where appropriate)
1.6. System identification
2. Applications
2.1. List of trailer types and configurations for which approval is required
2.2. Schematic diagrams of the respective configurations installed on the trailers defined in
item 2.1. above with consideration given to the following:
(a) Lift axles
(b) Steering axles
(c) Anti-lock braking configurations
2.3. Scope of application with respect to suspension type:
(a) Air suspension: any type of balanced "trailing arm" air suspension
(b) Other suspensions: individually identified by manufacturer, model and type
(balanced/unbalanced).
2.4. Additional information (if applicable) to the application of the directional control and/or
the roll-over control function(s)
3. Component Description
3.1. Sensors external to the controller
(a) Function(b) Limitations on the location of the sensors
(c) Identification, e.g. part numbers
3.2. Controller(s)
(a) General description and function
(b) Identification e.g. part numbers
(c) Limitations on the location of the controller(s).
(d) Additional features
3.3. Modulators
(a) General description and function(b) Identification
(c) Limitations
3.4. Electrical Equipment
(a) Circuit diagrams
(b) Powering methods
3.5. Pneumatic circuits
System schematics including anti-lock braking configurations associated with the trailer
types defined in paragraph 6.2.1. of this Annex.
-
7/30/2019 Reg13 Esc En
8/18
3.6 Safety aspects of the electronic system in accordance with Annex 18 to this Regulation
3.7. Electro-magnetic compatibility
3.7.1. Documentation demonstrating compliance with Regulation No. 10 including
the 02 series of amendments."
Add a new Appendix 8 to Annex 19, to read:
"Annex 19 - Appendix 8
VEHICLE STABILITY FUNCTION TEST REPORT
Test Report No: .
1. Identification:
1.1. Manufacturer of the vehicle stability function (name and address)
1.2. System name / model
1.3. Control function
2. System(s) and installations approved:
2.1. Anti-lock braking configurations (where appropriate)
2.2. Range of application (trailer type(s) and number of axles)
2.3. System identification
2.4. Additional features
3. Test data and results:
3.1. Test vehicle data (including the specification and functionality of the towing vehicle)
3.2. Test surface information
3.3. Additional Information
3.4. Demonstrative tests/simulations used for the purpose of evaluating the directional control and
the roll-over control as appropriate.
3.5. Test results
3.6. Assessment in accordance with Annex 18 to this Regulation
4. Limits of installation
4.1. Suspension type4.2. Brake type
4.3. Location of components on the trailer
4.4. Anti-lock braking configurations
4.5. Other recommendations/limitations (e.g. lifting axles, steering axles, etc.)
5. Attachments
6. Date of test:
7. This test has been carried out and the results reported in accordance with Annex 19
to ECE Regulation No. 13 as last amended by the series of amendments.
-
7/30/2019 Reg13 Esc En
9/18
Technical Service 1/ conducting the test
Signed: . Date:
8. Approval Authority 1/
Signed: . Date:
_____________________
1/ To be signed by different persons even when the Technical Service and Approval Authority are
the same or alternatively, a separate Approval Authority Authorisation issued with the report."
Appendix 7 (former), renumber as Appendix 9.
Annex 20
Paragraph 2.1.3., amend to read:
"2.1.3. A documentation package that contains the relevant verification information
including the relevant calculations, where appropriate, for the following:
Performance Requirements Annex 20 Reference
Cold service braking performance 3.
Parking brake performance 4.
Automatic (emergency) brake performance 5.
Failure of brake distribution system 6.Anti-lock braking 7.
Vehicle stability function 8.
Functional checks 9.
"
Add new paragraphs 8. to 8.2.1.4., to read:
"8. Alternative procedure for demonstrating the performance of a trailer equipped with a
vehicle stability function.
8.1. Evaluation of a trailer in accordance with paragraph 2. of Annex 21 to this Regulation
may be waived at the time of trailer type approval provided that the vehicle stability
function complies with the relevant requirements of Annex 19 to this Regulation.
8.2. Verification
-
7/30/2019 Reg13 Esc En
10/18
8.2.1. Verification of components and installation
The specification of the braking system, in which the stability control function is
integrated and installed on the trailer to be type approved shall be verified by satisfying
each of the following criteria:
Condition Criteria8.2.1.1. (a) Sensor(s) No change allowed
(b) Controller(s) No change allowed
(c) Modulator(s) No change allowed
8.2.1.2. Trailer types as defined in the test report No change allowed
8.2.1.3. Installation configurations as defined in the test report No change allowed
8.2.1.4. For other limitations refer to paragraph 4. of the test report as
described in Appendix 8 of Annex 19 to this Regulation.
No change allowed
"
Paragraph 9.1.8. (former), renumber as paragraph 9.1.9.
Add new paragraphs 9.1.8. and 9.1.8.1., to read:
"9.1.8. Vehicle stability function
9.1.8.1. For practical reasons verification of the vehicle stability function shall be limited to an
installation check as defined in paragraph 8.2. above and observation of the correct
warning signal sequence to ensure no faults are present."
Add a new Annex 21, to read (including its Appendices 1 to 3):
"Annex 21
SPECIAL REQUIREMENTS FOR VEHICLES EQUIPPED WITH A
VEHICLE STABILITY FUNCTION
1. GENERAL
This annex defines the special requirements for vehicles equipped with a vehicle
stability function, pursuant to paragraphs 5.2.1.32. and 5.2.2.23. of this Regulation.
2. REQUIREMENTS
2.1. Power-driven vehicles
2.1.1. Where a vehicle is equipped with a vehicle stability function as defined in
paragraph 2.32. of this Regulation, the following shall apply:
In the case of directional control the function shall have the ability to automatically
control individually the speed of the left and right wheels on each axle or an axle of each
-
7/30/2019 Reg13 Esc En
11/18
axle group 1/ by selective braking based on the evaluation of actual vehicle behaviour in
comparison with a determination of vehicle behaviour demanded by the driver. 2/
In the case of roll-over control the function shall have the ability to automatically
control the wheel speeds on at least two wheels of each axle or axle group 1/ by
selective braking or automatically commanded braking based on the evaluation of actualvehicle behaviour that may lead to vehicle roll-over. 2/
In both cases, the function is not required when the vehicle is in reverse mode or when
the vehicle speed is below 10 km/h.
2.1.2. To realise the functionality defined above a vehicle stability function shall include, in
addition to selective braking and/or automatically commanded braking, at least the
following:
(a) The ability to control engine power output.
(b) In the case of directional control: The determination of actual vehicle behaviour
from values of yaw rate, lateral acceleration, wheel speeds, and from the driver's
control inputs to the braking and steering systems and to the engine. Only on-
board generated information shall be used. If these values are not directly
measured, the evidence of the appropriate correlation with directly measured
values under all driving conditions (e.g. including driving in a tunnel) shall be
shown to the technical service at the time of type approval.
(c) In the case of roll-over control: The determination of actual vehicle behaviour
from values of the vertical force on the tyre(s) (or at least lateral acceleration and
wheel speeds) and from the driver's control inputs to the braking system and to the
engine. Only on-board generated information shall be used. If these values are
not directly measured, the evidence of the appropriate correlation with directlymeasured values under all driving conditions (e.g. including driving in a tunnel)
shall be shown to the technical service at the time of type approval.
(d) In the case of a towing vehicle equipped according to paragraph 5.1.3.1. of this
Regulation: The ability to apply the service brakes of the trailer via the respective
control line(s) independently of the driver.
______________________
1/ In the case of multiple axles, where the spread between one axle and its adjacent axle is greater
than 2m, each individual axle shall be considered as an independent axle group.
2/ Additional interaction with other vehicle systems or components is allowed. Where these systemsor components are subject to special Regulations, such interaction shall comply with the requirements
of those Regulations, e.g. interaction with the steering system shall comply with the requirements set
out in Regulation No. 79 for corrective steering.
-
7/30/2019 Reg13 Esc En
12/18
2.1.3. The vehicle stability function shall be demonstrated to the Technical Service by
dynamic manoeuvres on one vehicle. This may be realized by a comparison of results
obtained with the vehicle stability function enabled and disabled for a given load
condition. As an alternative to carrying-out dynamic manoeuvres for other vehicles and
other load conditions, fitted with the same vehicle stability system, the results from
actual vehicle tests or computer simulations may be submitted.
The use of the simulator is defined in Appendix 1 to this Annex.
The specification and validation of the simulator is defined in Appendix 2 to this annex.
Until unified test procedures are agreed, the method by which this demonstration is
carried out shall be agreed between the vehicle manufacturer and the Technical Service
and shall include the critical conditions of directional control and roll-over control as
appropriate to the vehicle stability function installed on the vehicle with the method of
demonstration and results being appended to the type approval report. This may be
carried-out other than at the time of type approval.
As a means of demonstrating the vehicle stability function any of the following
dynamic manoeuvres shall be used 3/:
Directional Control Roll-Over Control
Reducing radius test Steady state circular test
Step steer input test J-turn
Sine with dwell
J-turn-split single lane change
Double lane change
Reversed steering test or "fish hook" test
Asymmetrical one period sine steer or pulse
steer input test
To demonstrate repeatability the vehicle will be subject to a second demonstration using
the selected manoeuvre(s).
______________
3/ Should the use of any of the above defined manoeuvres not result in loss of directional control or
roll-over as appropriate an alternative manoeuvre may be used in agreement with the technical service.
-
7/30/2019 Reg13 Esc En
13/18
2.1.4. Interventions of the vehicle stability function shall be indicated to the driver by a
specific optical warning signal. The indication shall be present as long as the vehicle
stability function is in an intervention mode. The warning signals specified in
paragraph 5.2.1.29. of this Regulation shall not be used for this purpose.
Interventions of the vehicle stability function used in any learning process to determinethe vehicle operational characteristics shall not generate the above signal.
The signal shall be visible to the driver, even in daylight, such that the driver can easily
verify the satisfactory condition of the signal without leaving the driver's seat.
2.1.5. A vehicle stability function failure or defect shall be detected and indicated to the driver
by the specific optical warning signal referred to in paragraph 5.2.1.29. of this
Regulation.
The warning signal shall be constant and remain displayed as long as the failure or
defect persists and the ignition (start) switch is in the 'on' (run) position.
2.1.6. In the case of a power-driven vehicle equipped with an electric control line and
electrically connected to a trailer with an electric control line the driver shall be warned
by a specific optical warning signal whenever the trailer provides the information "VDC
Active" via the data communications part of the electric control line. The optical signal
defined in paragraph 2.1.4. above may be used for this purpose.
2.2. Trailers
2.2.1. Where a trailer is equipped with a vehicle stability function as defined inparagraph 2.32. of this Regulation, the following shall apply:
In the case of directional control the function shall have the ability to automatically
control individually the speed of the left and right wheels on each axle or an axle of each
axle group 4/ by selective braking based on the evaluation of actual trailer behaviour in
comparison with a determination of the relative behaviour of the towing vehicle. 5/
______________________
4/ In the case of multiple axles, where the spread between on axle and its adjacent axle is greater
than 2 m, each individual axle shall be considered as an independent axle group.
5/ Additional interaction with other vehicle systems or components is allowed. Where these systems
or components are subject to special Regulations, such interaction shall comply with the requirements
of those Regulations, e.g. interaction with the steering system shall comply with the requirements set
out in Regulation No. 79 for corrective steering.
-
7/30/2019 Reg13 Esc En
14/18
In the case of roll-over control the function shall have the ability to automatically
control the wheel speeds on at least two wheels of each axle or axle group 4/ by
selective braking or automatically commanded braking based on the evaluation of actual
trailer behaviour that may lead to roll-over. 5/
2.2.2. To realise the functionality defined above a vehicle stability function shall include, in
addition to automatically commanded braking and where appropriate selective braking,at least the following:
(a) The determination of actual trailer behaviour from values of the vertical force on
the tyre(s), or at least lateral acceleration and wheel speeds. Only on-board
generated information shall be used. If these values are not directly measured, the
evidence of the appropriate correlation with directly measured values under all
driving conditions (e.g. including driving in a tunnel) shall be shown to the
technical service at the time of type approval.
2.2.3. The vehicle stability function shall be demonstrated to the Technical Service by
dynamic manoeuvres on one vehicle. This may be done by a comparison of results
obtained with the vehicle stability function enabled and disabled for a given load
condition. As an alternative to carrying-out dynamic manoeuvres for other vehicles and
other load conditions, fitted with the same vehicle stability system, the results from
actual vehicle tests or computer simulations may be submitted.
The use of the simulator is defined in Appendix 1 to this Annex.
The specification and validation of the simulator is defined in Appendix 2 to this annex.
Until unified test procedures are agreed, the method by which this demonstration is
carried out shall be agreed between the trailer manufacturer and the Technical Serviceand shall include the critical conditions of roll-over control and directional control as
appropriate to the vehicle stability function installed on the trailer with the method of
demonstration and results being appended to the type approval report. This may be
carried-out other than at the time of type approval.
As a means of demonstrating the vehicle stability function any of the following
dynamic manoeuvres shall be used 6/:
______________________
6/ Should the use of any of the above defined manoeuvres not result in loss of directional control or
roll-over as appropriate an alternative manoeuvre may be used in agreement with the technical service.
-
7/30/2019 Reg13 Esc En
15/18
Directional Control Roll-Over Control
Reducing radius test Steady state circular test
Step steer input test J-turn
Sine with dwell
J-turn-split single lane change
Double lane change
Reversed steering test or "fish hook" test
Asymmetrical one period sine steer or pulse steer
input test
To demonstrate repeatability the vehicle will be subject to a second demonstration using
the selected manoeuvre(s).
2.2.4. Trailers equipped with an electric control line, when electrically connected to a towingvehicle with an electric control line, shall provide the information "VDC active" via the
data communications part of the electric control line when the vehicle stability function
isin an intervention mode. Interventions of the vehicle stability function used in any
learning process to determine the trailer operational characteristics shall not generate the
above information.
2.2.5. To maximise the performance of trailers that utilise "select-low" such trailers are
permitted to change control mode to "select-high" during an intervention of the "Vehicle
Stability Function".
Annex 21 - Appendix 1
USE OF THE DYNAMIC STABILITY SIMULATION
The effectiveness of the directional and/or roll-over stability control function of power-driven vehicles
and trailers of categories M, N and O, may be determined by computer simulation.
1. USE OF THE SIMULATION
1.1 The vehicle stability function shall be demonstrated by the vehicle manufacturer to the
Type Approval Authority or Technical Service with the same dynamic manoeuvre(s) as
for the practical demonstration in paragraph 2.1.3. or 2.2.3. of Annex 21.
1.2. The simulation shall be a means whereby the vehicle stability performance may be
demonstrated with the vehicle stability function enabled or disabled, and in the laden
and unladen conditions.
1.3. The simulations shall be carried out with a validated modelling and simulation tool. The
verification shall be carried out using the same manoeuvre(s) as defined in
paragraph 1.1. above.
The method by which the simulation tool is validated is given in Annex 21, Appendix 2.
-
7/30/2019 Reg13 Esc En
16/18
Annex 21 - Appendix 2
DYNAMIC STABILITY SIMULATION TOOL AND ITS VALIDATION
1. SPECIFICATION OF THE SIMULATION TOOL
1.1. The simulation method shall take into account the main factors which influence the
directional and roll motion of the vehicle. A typical model may include the following
vehicle parameters in an explicit or implicit form:
(a) Axle/wheel
(b) Suspension
(c) Tyre
(d) Chassis/vehicle body
(e) Power train/driveline, if applicable
(f) Brake system
(g) Pay load
1.2. The Vehicle Stability Function shall be added to the simulation model by means of:
a) a subsystem (software model) of the simulation tool, or
b) the electronic control box in a hardware-in-the-loop configuration.
1.3. In the case of a trailer, the simulation shall be carried out with the trailer coupled to a
representative towing vehicle.
1.4 Vehicle loading condition
1.4.1. The simulator shall be able to take into account the laden and unladen conditions.
1.4.2. The load shall be considered to be a fixed load with properties (mass, mass distribution
and maximum recommended height of the centre of gravity) specified by the
manufacturer.
2. VALIDATION OF THE SIMULATION TOOL
2.1. The validity of the applied modelling and simulation tool shall be verified by means of
comparisons with a practical vehicle test(s). The test(s) utilised for the validation shall
be those which, without control action, would result in loss of directional control (under-
steer and over-steer) or roll-over control as appropriate to the functionality of thestability control function installed on a representative vehicle.
During the test(s) the following motion variables, as appropriate, shall be recorded or
calculated in accordance with ISO 15037 Part 1:2005: General conditions for passenger
cars or Part 2:2002: General conditions for heavy vehicles and buses (depending on the
vehicle category):
(a) yaw velocity;
(b) lateral acceleration;
(c) wheel load or wheel lift;
(d) forward velocity;
(e) driver input.
-
7/30/2019 Reg13 Esc En
17/18
2.2. The objective is to show that the simulated vehicle behaviour and operation of the
vehicle stability function is comparable with that seen in practical vehicle tests.
2.3. The simulator shall be deemed to be validated when its output is comparable to the
practical test results produced by a given vehicle type during the selected manoeuvre(s)from those defined with paragraph 2.1.3. or 2.2.3. of Annex 21, as appropriate.
In the case of the steady state circular test the under-steer gradient shall be the means of
making the comparison.
In the case of a dynamic manoeuvre, the relationship of activation and sequence of the
vehicle stability function in the simulation and in the practical vehicle test shall be the
means of making the comparison.
2.4. The physical parameters that are different between the reference vehicle and simulated
vehicle configurations shall be modified accordingly in the simulation.
2.5. A simulator test report shall be produced, a model of which is defined in Appendix 3 of
this annex, and a copy attached to the vehicle approval report.
Annex 21 - Appendix 3
VEHICLE STABILITY FUNCTION SIMULATION TOOL TEST REPORT
Test Report Number: ..
1. Identification1.1. Name and address of the simulation tool manufacturer
1.2. Simulation tool identification: name/model/number (hardware and software)
2. Scope of application
2.1. Vehicle type: (e.g. truck, tractor, bus, semi-trailer, centre-axle trailer, full trailer)
2.2. Vehicle configuration: (e.g. 4x2, 4x4, 6x2, 6x4, 6x6)
2.3. Limiting factors: (e.g. mechanical suspension only)
2.4. Manoeuvre(s) for which the simulator has been validated:
3. Verifying vehicle test(s)
3.1. Description of vehicle(s) including the towing vehicle in case of trailer testing:3.1.1. Vehicle(s) identification: make/model/VIN
3.1.1.1. Non-standard fitments:
3.1.2. Vehicle description, including axle configuration/suspension/wheels, engine and drive line,
braking system(s) and vehicle stability function content (directional control/roll-over control),
steering system, with name/model/number identification:
3.1.3. Vehicle data used in the simulation (explicit):
3.2. Description of test(s) including location(s), road/test area surface conditions,
temperature and date(s):
3.3. Results laden and unladen with the vehicle stability function switched on and off, including
the motion variables referred to in Annex 21, Appendix 2, paragraph 2.1. as appropriate:
-
7/30/2019 Reg13 Esc En
18/18
4. Simulation results
4.1. Vehicle parameters and the values used in the simulation that are not taken from the actual
test vehicle (implicit):
4.2. Results laden and unladen with the vehicle stability function switched on and off for each test
conducted under paragraph 3.2. of this Appendix, including the motion variables referred to in
Annex 21, Appendix 2, paragraph 2.1. as appropriate:
5. This test has been carried out and the results reported in accordance with Appendix 2 of
Annex 21 to ECE Regulation No. 13 as last amended by the series of amendments.
Technical Service conducting the test 1/.
Signed: .. Date:
Approval Authority 1/ ..
Signed: . Date:
______________________
1/
To be signed by different persons if the Technical Service and the Approval Authority is the same
organisation."
- - - - -